Exciting news! We're transitioning to the Statewide California Earthquake Center. Our new website is under construction, but we'll continue using this website for SCEC business in the meantime. We're also archiving the Southern Center site to preserve its rich history. A new and improved platform is coming soon!
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Lisa Grant Ludwig

University of California Irvine
Professor and Chair

Expertise: Paleoseismology and earthquake geology, neotectonics, environmental geology and public health
 
 
About Me Publications
Akciz, S. O., Grant Ludwig, L., Arrowsmith, R., & Rhodes, E. J. (2022, 09). Channel incision ages to the rescue: An improved age for the penultimate earthquake that ruptured the Carrizo Plain section of the southern San Andreas Fault. Poster Presentation at 2022 SCEC Annual Meeting. SCEC Contribution 12089
Grant Ludwig, L., Mirkhanian, M. A., Donnellan, A., Parker, J. W., Wang, J., & Pierce, M. E. (2021, 08). Using GeoGateway to access NASA Earth Science data for teaching. Poster Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11545
Grant Ludwig, L. (2021, 08). Pandemic lessons for earthquake resilience. Oral Presentation at 2021 SCEC Annual Meeting. SCEC Contribution 11209
Grant Ludwig, L., Mirkhanian, M. A., Donnellan, A., & Parker, J. W. (2020, 08). Expanding the GeoGateway Science User Community. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10575
Grant Ludwig, L. (2019, 08). Ethical considerations for research on Fragile Geologic Features. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9830
Mirkhanian, M. A., Grant Ludwig, L., Donnellan, A., Parker, J. W., & Granat, R. A. (2018, 08). Using GeoGateway Data to Explore Deformation in the Cajon Pass Region. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8833
Donnellan, A., Parker, J. W., Heflin, M. B., Rundle, J. B., Grant Ludwig, L., & Lyzenga, G. A. (2018, 08). Deformation in the Yuha Desert from the 2010 M7.2 El Mayor – Cucapah Earthquake . Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8774
Williams, A. M., Arrowsmith, R., Rockwell, T. K., Akciz, S. O., & Grant Ludwig, L. (2018, 08). Refining the earthquake chronology of the last millennium along the Cholame segment of the San Andreas fault. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8609
Halkia, G., & Grant Ludwig, L. (2018, 08). Communicating Seismological Uncertainty to the Public: A Case Study in Oklahoma. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8331
Williams, A. M., Arrowsmith, R., Rockwell, T. K., Grant Ludwig, L., Akciz, S. O., & Gontz, A. M. (2017, 08). Testing the shorter and variable recurrence interval hypothesis along the Cholame segment of the San Andreas Fault. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7860
Donnellan, A., Parker, J. W., Granat, R. A., Heflin, M. B., Rundle, J. B., Grant Ludwig, L., Pierce, M. E., & Wang, J. (2017, 08). Northwest Propagation of Postseismic Deformation in the Yuha Desert from the 2010 M7.2 El Mayor – Cucapah Earthquake. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7777
Grant Ludwig, L., Donnellan, A., & Parker, J. W. (2017, 08). Using GeoGateway Line-of-Sight (LOS) Tool to Explore Deformation along the San Andreas Fault in the Carrizo Plain, CA. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7748
Halkia, G., & Grant Ludwig, L. (2017, 08). Newspaper Media Content Analysis: Community Effects of Induced Seismicity in Oklahoma. Poster Presentation at 2017 SCEC Annual Meeting. SCEC Contribution 7430
Salisbury, J. B., Arrowsmith, R., Sims, J., Grant Ludwig, L., & Akciz, S. O. (2016). Refining the south-central San Andreas fault slip rate at the millennial timescale using reconstructed offset paleo-channels in the Carrizo Plain, California. Journal of Geophysical Research, (in preparation). SCEC Contribution 7154
Salisbury, J. B., Arrowsmith, R., Rockwell, T. K., Akciz, S. O., Brown, N. D., & Grant Ludwig, L. (2016, 08). Investigating the age and origin of small offsets at Van Matre Ranch along the San Andreas Fault in the Carrizo Plain, California. Poster Presentation at 2016 SCEC Annual Meeting. SCEC Contribution 6931
Williams, A. M., Arrowsmith, R., Akciz, S. O., Rockwell, T. K., Grant Ludwig, L., & Branscomb, S. (2016, 08). Testing the shorter and variable recurrence interval hypothesis along the Cholame segment of the San Andreas Fault. Poster Presentation at 2016 SCEC Annual Meeting. SCEC Contribution 6827
Donnellan, A., Parker, J. W., Granat, R. A., Heflin, M. B., Pierce, M. E., Wang, J., Rundle, J. B., & Grant Ludwig, L. (2016, 08). Access to Geodetic Imaging Products through GeoGateway Analysis, Modeling, and Response Tools. Poster Presentation at 2016 SCEC Annual Meeting. SCEC Contribution 6687
Akciz, S. O., Grant Ludwig, L. B., Zielke, O., & Arrowsmith, J. R. (2013). Post-1857 fracturing and deflection of an apparent offset channel along the San Andreas Fault in the Carrizo Plain. Bulletin of the Seismological Society of America, (under review). SCEC Contribution 1544
Akciz, S. O., Grant Ludwig, L., Arrowsmith, R. J., Capaldi, T. N., & Rhodes, E. J. (2023). Channel Incision Ages to the Rescue: An Improved Age for the Penultimate Earthquake That Ruptured the Carrizo Section of the South-Central San Andreas Fault. Bulletin of the Seismological Society of America, 113(2), 877-887. doi: 10.1785/0120220189. SCEC Contribution 12645
Rood, A. H., Rood, D. H., Balco, G., Stafford, P. J., Grant Ludwig, L., Kendrick, K. J., & Wilcken, K. M. (2022). Validation of earthquake ground-motion models in southern California using precariously balanced rocks. Geological Society of America Bulletin,. doi: 10.1130/B36484.1. SCEC Contribution 12006
Stirling, M., Oskin, M. E., Arrowsmith, R., Rood, A. H., Goulet, C. A., Grant Ludwig, L., King, T., Kottke, A. R., Lozos, J. C., Madugo, C. M., McPhillips, D., Rood, D. H., Sleep, N. H., & Wittich, C. (2020). Evaluation of seismic hazard models with fragile geologic features. Seismological Research Letters, 92(1), 314-324. doi: 10.1785/0220200197. SCEC Contribution 10777
Grant Ludwig, L., Akciz, S. O., Arrowsmith, J., & Salisbury, J. (2019). Reproducibility of San Andreas Fault Slip Rate Measurements at Wallace Creek in the Carrizo Plain, CA. Earth and Space Science, 6(1), 156-165. doi: 10.1029/2017EA000360. SCEC Contribution 8145
Salisbury, J. B., Arrowsmith, R., Brown, N. D., Rockwell, T. K., Grant Ludwig, L., & Akciz, S. O. (2018). The age and origin of small offsets at Van Matre Ranch along the San Andreas Fault in the Carrizo Plain, California. Bulletin of the Seismological Society of America, 108(2), 639–653. SCEC Contribution 7152
Akciz, S. O., Marino, J., Olsen, J. O., Marquez, E., Salisbury, J. B., Williams, A. M., Rockwell, T. K., Arrowsmith, R. R., & Grant Ludwig, L. (2015). Filling the paleoseismic gap between Bidart and Frazier Mountain: Exploration of Van Matre Ranch (VMR) paleoseismic site in the Carrizo Plain. Poster Presentation at 2015 SCEC Annual Meeting. SCEC Contribution 6061
Grant Ludwig, L. B., Brune, J. N., Anooshehpoor, A., Purvance, M. D., Brune, R. J., & Lozos, J. C. (2015). Reconciling precariously balanced rocks with large earthquakes on the San Andreas fault system. Seismological Research Letters, 86(5), 1345-1353. SCEC Contribution 1545
Grant Ludwig, L., Brune, J. N., Anooshehpoor, R., Purvance, M. D., Brune, R. J., & Lozos, J. C. (2015). Reconciling Precariously Balanced Rocks (PBRs) with Large Earthquakes on the San Andreas Fault System. Seismological Research Letters, 86(5), 1345-1353. doi: 10.1785/0220140239. SCEC Contribution 10140
Akciz, S. O., Grant Ludwig, L. B., Zielke, O., & Arrowsmith, J. R. (2014). 3D investigation of a 5m deflected channel along the San Andreas fault in the Carrizo Plain. Bulletin of the Seismological Society of America, 104(6). doi: 10.1785/0120120172. SCEC Contribution 1846
Zielke, O., Arrowsmith, J. R., Grant Ludwig, L. B., & Akciz, S. O. (2012). High Resolution Topography-Derived Offset Along the 1857 Fort Tejon Earthquake Rupture Trace, San Andreas Fault. Bulletin of the Seismological Society of America, 102(3), 1135-1154. doi: 10.1785/0120110230. SCEC Contribution 1505
Zielke, O., Arrowsmith, J. R., Grant Ludwig, L. B., & Akciz, S. O. (2010). Slip in the 1857 and Earlier Large Earthquakes Along the Carrizo Plain, San Andreas Fault. Science, Science Express, online. doi: 10.1126/science.1182781. SCEC Contribution 1310
Akciz, S. O., Grant Ludwig, L. B., Arrowsmith, J. R., & Zielke, O. (2010). Century-long average time intervals between earthquake ruptures of the San Andreas Fault in the Carrizo Plain. Geology, 38(9), 787-790. doi: 10.1130/G30995.1. SCEC Contribution 1307
Grant Ludwig, L. B., Akciz, S. O., Noriega, G. R., Zielke, O., & Arrowsmith, J. R. (2010). Climate-Modulated Channel Incision and Rupture History of the San Andreas Fault in the Carrizo Plain. Science, Science Express, online. doi: 10.1126/science.1182837. SCEC Contribution 1305
Akciz, S. O., Grant Ludwig, L. B., & Arrowsmith, J. R. (2009). Revised dates of large earthquakes along the Carrizo section of the San Andreas Fault, California, since A.D. 1310±30. Journal of Geophysical Research, 114. doi: 10.1029/2007JB005285. SCEC Contribution 1049
Plesch, A., Shaw, J. H., Bryant, W. A., Carena, S., Cooke, M. L., Dolan, J. F., Fuis, G. S., Gath, E. M., Grant Ludwig, L. B., Hauksson, E., Jordan, T. H., Kamerling, M. J., Legg, M. R., Lindvall, S. C., Magistrale, H., Nicholson, C., Niemi, N. A., Oskin, M. E., Perry, S. C., Planansky, G., Rockwell, T. K., Shearer, P. M., Sorlien, C. C., Suess, M., Suppe, J., Treiman, J. A., & Yeats, R. S. (2007). Community Fault Model (CFM) for Southern California. Bulletin of the Seismological Society of America, 97(6), 1793-1802. doi: 10.1785/0120050211. SCEC Contribution 1134
Van Aalsburg, J. D., Grant Ludwig, L. B., Yakovlev, G., Rundle, P. B., Rundle, J. B., Turcotte, D. L., & Donnellan, A. (2007). A Feasibility Study of Data Assimilation in Numerical Simulations of Earthquake Fault Systems. Physics of the Earth and Planetary Interiors, 163(1-4), 149-162. doi: 10.1016/j.pepi.2007.04.020. SCEC Contribution 1082
Noriega, G. R., Arrowsmith, J. R., Grant Ludwig, L. B., & Young, J. (2006). Stream channel offset and late Holocene slip rate of the San Andreas fault at the Van Matre Ranch site, Carrizo Plain, California. Bulletin of the Seismological Society of America, 96(1), 33-47. doi: 10.1785/0120050094. SCEC Contribution 906
Rundle, J. B., Rundle, P. B., Donnellan, A., Li, P., Klein, W., Morein, G., Turcotte, D. L., & Grant Ludwig, L. B. (2006). Stress Transfer in Earthquakes, Hazard Estimation and Ensemble Forecasting: Inferences from Numerical Simulations. Tectonophysics, 413(1-2), 109-125. doi: 10.1016/j.tecto.2005.10.031. SCEC Contribution 794
Grant Ludwig, L. B., & Shearer, P. M. (2004). Activity of the Offshore Newport-Inglewood Rose Canyon Fault Zone, Coastal Southern California, from Relocated Microseismicity. Bulletin of the Seismological Society of America, 94(2), 747-752. doi: 10.1785/0120030149. SCEC Contribution 746
Grant Ludwig, L. B., & Rockwell, T. K. (2002). A Northward-propagating Earthquake Sequence in Coastal Southern California?. Seismological Research Letters, 73(4), 461-469. SCEC Contribution 682
Runnerstrom, E. E., Grant Ludwig, L. B., Arrowsmith, J. R., & Stone, E. (2002). Displacement Across the Cholame Segment of the San Andreas Fault Between 1855 and 1893 from Cadastral Surveys. Bulletin of the Seismological Society of America, 92(7), 2659-2669. doi: 10.1785/0120000603. SCEC Contribution 586
Young, J., Arrowsmith, J. R., Colini, L., & Grant Ludwig, L. B. (2002). Three-Dimensional Excavation and Recent Rupture History along the Cholame Segment of the San Andreas Fault. Bulletin of the Seismological Society of America, 92(7), 2670-2688. doi: 10.1785/0120000604. SCEC Contribution 581
Grant Ludwig, L. B., Ballenger, L., & Runnerstrom, E. E. (2002). Coastal Uplift of the San Joaquin Hills, Southern Los Angeles Basin, California, by a Large Earthquake since A.D. 1635. Bulletin of the Seismological Society of America, 92(2), 590-599. doi: 10.1785/0120010119. SCEC Contribution 531
Stone, E., Arrowsmith, J. R., & Grant Ludwig, L. B. (2002). Recent Rupture History of the San Andreas Fault Southeast of Cholame in the Northern Carrizo Plain, California. Bulletin of the Seismological Society of America, 92(3), 983-997. doi: 10.1785/0120000005. SCEC Contribution 495
Grant Ludwig, L. B., Mueller, K. J., Gath, E. M., Cheng, H., Edwards, L. R., Munro, R., & Kennedy, G. L. (1999). Late Quaternary Uplift and Earthquake Potential of the San Joaquin Hills, Southern Los Angeles Basin, California. Geology, 27(11), 1031-1034. doi: 10.1130/0091-7613(1999)027<1031:LQUAEP>2.3.CO;2. SCEC Contribution 433
Grant Ludwig, L. B., Waggoner, J., von Stein, C., & Rockwell, T. K. (1997). Paleoseismicity of the North Branch of the Newport-Inglewood Fault Zone from Cone Penetrometer Test Data. Bulletin of the Seismological Society of America, 87(no 2), 277-293. SCEC Contribution 290
Grant Ludwig, L. B. (1996). Uncharacteristic Earthquakes on the San Andreas Fault. Science, 272(5263), 826-827. doi: 10.1126/science.272.5263.826. SCEC Contribution 316
McGill, S. F., & Grant Ludwig, L. B. (1995). Summary of Findings: Workshop of Preparing a Digital Fault and Fold Map and Database for Southern California. , : . SCEC Contribution 222

Last updated Apr 06, 2023.